It was restored to its original, operational state by Apple expert Corey Cohen. The system was operated without fault for approximately eight hours in a test. It even includes the original keyboard from the 1970s.

This August 2018 photo provided by RR Auctions shows a close up of the circuit board from a vintage Apple Computer. Photo (Sarina Carlo/RR Auctions via AP)

It shows the humble beginnings of Cupertino, California-based Apple, which recently became the world's first publicly traded company to be valued at $1 trillion.

The Apple 1 originally sold for about $666. It could get $300,000 or more at auction.